The word “chivalry” comes from the French cheval, which can be translated as "horse soldiery", but later in the 14th century it became associated with knightly ideals.
The phrase "a sign of the times" originates from biblical texts, specifically in Matthew 16:3, where Jesus refers to interpreting "the signs of the times" as a way to understand unfolding events. It evolved to describe trends or occurrences that refl